border-bottom-left-radius

Theborder-bottom-left-radius CSS property sets the rounding of the bottom-left corner of the element.

The source for this interactive example is stored in a GitHub repository. If you'd like to contribute to the interactive examples project, please clone https://github.com/mdn/interactive-examples and send us a pull request.

The rounding can be a circle or an ellipse, or if one of the value is 0 no rounding is done and the corner is square.

A background, being an image or a color, is clipped at the border, even a rounded one; the exact location of the clipping is defined by the value of the background-clip property.

If the value of this property is not set in a border-radius shorthand property that is applied to the element after the border-bottom-left-radius CSS property, the value of this property is then reset to its initial value by the shorthand property.

the value is a <length> or a <percentage> denoting the radius of the circle to use for the border in that corner.

With two values:

the first value is a <length> or a <percentage> denoting the horizontal semi-major axis of the ellipse to use for the border in that corner.

the second value is a <length> or a <percentage> denoting the vertical semi-major axis of the ellipse to use for the border in that corner.

Values

<length-percentage>

Denotes the size of the circle radius or the semi-major and semi-minor axes of the ellipse. As absolute length it can be expressed in any unit allowed by the CSS <length> data type. Percentages for the horizontal axis refer to the width of the box, percentages for the vertical axis refer to the height of the box. Negative values are invalid.

all elements; but User Agents are not required to apply to table and inline-table elements when border-collapse is collapse. The behavior on internal table elements is undefined for the moment.. It also applies to ::first-letter.

1. Prior to Firefox 50, border styles of rounded corners were always rendered as if border-style was solid. This has been fixed in Firefox 50.

2. From version 44: this feature is behind the layout.css.prefixes.webkit preference (needs to be set to true). To change preferences in Firefox, visit about:config.

3. Supported as -moz-border-radius-bottomleft.

4. Before Firefox 4, the <percentage> was relative to the width of the box even when specifying the radius for a height. This implied that -moz-border-radius-bottomleft was always drawing an arc of circle, and never an ellipse, when followed by a single value.

Desktop

Mobile

Chrome

Edge

Firefox

Internet Explorer

Opera

Safari

Android webview

Chrome for Android

Edge Mobile

Firefox for Android

Opera for Android

iOS Safari

Samsung Internet

Basic support

Full support
4

Full support
4

Full support
1

Prefixed

Prefixed Requires the vendor prefix: -webkit-

Full support
12

Full support
12

Full support
12

Prefixed

Prefixed Requires the vendor prefix: -webkit-

Full support
4

Notes

Full support
4

Notes

Notes Prior to Firefox 50, border styles of rounded corners were always rendered as if border-style was solid. This has been fixed in Firefox 50.

Full support
49

Prefixed

Prefixed Requires the vendor prefix: -webkit-

Full support
44

PrefixedDisabled

Prefixed Requires the vendor prefix: -webkit-

Disabled From version 44: this feature is behind the layout.css.prefixes.webkit preference (needs to be set to true). To change preferences in Firefox, visit about:config.

Notes Prior to Firefox 50, border styles of rounded corners were always rendered as if border-style was solid. This has been fixed in Firefox 50.

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Percentages

Full support
4

Full support
12

Full support
4

Full support
4

Full support
1

Notes

Notes Before Firefox 4, the <percentage> was relative to the width of the box even when specifying the radius for a height. This implied that -moz-border-radius-bottomleft was always drawing an arc of circle, and never an ellipse, when followed by a single value.